Lists of fossiliferous stratigraphic units in the United States

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Select a region on the graphical atlas to view a list of the fossiliferous stratigraphic units in that area of the United States.

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Graphical atlas

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Notes

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    <span class="mw-page-title-main">Grant Lake Formation</span>

    The Grant Lake Formation is a geologic formation in Ohio and Kentucky. It preserves fossils dating back to the Ordovician period.

    <span class="mw-page-title-main">Cincinnati Group</span> Geologic group in Kentucky, Ohio and Indiana, United States

    The Cincinnati Group is a geologic group in Kentucky, Ohio and Indiana. It is Upper Ordovician.

    The Osgood Formation, also known as the Osgood Shale is a geologic formation in Indiana, Kentucky, and Ohio. It preserves fossils dating back to the Silurian period.

    The Janesville Shale or Janesville Formation is a geologic formation in Kansas, Oklahoma, and Nebraska dating to the late Carboniferous period.

    The Skull Creek Shale is a Cretaceous geologic formation in Wyoming as well as Colorado and Nebraska, United States.

    The Beattie Formation, or Beattie Limestone, is a geologic formation in east-central Kansas, northeast-central Oklahoma, and southeastern Nebraska in the Midwestern United States. It preserves fossils dating to the Permian period.

    <span class="mw-page-title-main">Foraker Formation</span>

    The Foraker Formation is a geologic formation in Nebraska, Kansas, and Oklahoma. It preserves fossils dating to the Carboniferous period.

    This list of dinosaur-bearing rock formations is a list of geologic formations in which dinosaur fossils have been documented.

    The Morrill Limestone is a stratigraphic unit in east-central Kansas, northeast-central Oklahoma, and southeastern Nebraska in the Midwestern United States. It preserves fossils dating to the Permian period.

    The Florena Shale is a stratigraphic unit in east-central Kansas, northeast-central Oklahoma, and southeastern Nebraska in the Midwestern United States. It preserves fossils dating to the Permian period.

    The Neva Limestone is a stratigraphic unit and historic building stone in east-central Kansas, northeast-central Oklahoma, and southeastern Nebraska in the Midwestern United States. It preserves fossils dating to the Permian period.

    The Fort Riley Limestone is a Permian stratigraphic unit and historic building stone, sold commercially as fine-grained Silverdale, at one time being quarried at Silverdale, Kansas. The limestone outcrops in east-central Kansas, northeast-central Oklahoma, and southeastern Nebraska in the Midwestern United States. Its outcrop caps the bluffs overlooking the original buildings of Fort Riley.

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